rs1194403044

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 5P and 1B. PM1PM2PP2BP4

The NM_004329.3(BMPR1A):​c.89T>C​(p.Leu30Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,014 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

BMPR1A
NM_004329.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.43
Variant links:
Genes affected
BMPR1A (HGNC:1076): (bone morphogenetic protein receptor type 1A) The bone morphogenetic protein (BMP) receptors are a family of transmembrane serine/threonine kinases that include the type I receptors BMPR1A and BMPR1B and the type II receptor BMPR2. These receptors are also closely related to the activin receptors, ACVR1 and ACVR2. The ligands of these receptors are members of the TGF-beta superfamily. TGF-betas and activins transduce their signals through the formation of heteromeric complexes with 2 different types of serine (threonine) kinase receptors: type I receptors of about 50-55 kD and type II receptors of about 70-80 kD. Type II receptors bind ligands in the absence of type I receptors, but they require their respective type I receptors for signaling, whereas type I receptors require their respective type II receptors for ligand binding. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a topological_domain Extracellular (size 128) in uniprot entity BMR1A_HUMAN there are 7 pathogenic changes around while only 0 benign (100%) in NM_004329.3
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the BMPR1A gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 17 curated pathogenic missense variants (we use a threshold of 10). The gene has 19 curated benign missense variants. Gene score misZ: 1.9176 (below the threshold of 3.09). Trascript score misZ: 3.8989 (above the threshold of 3.09). GenCC associations: The gene is linked to polyposis syndrome, hereditary mixed, 2, generalized juvenile polyposis/juvenile polyposis coli, hereditary mixed polyposis syndrome, pulmonary arterial hypertension, juvenile polyposis syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.28399646).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
BMPR1ANM_004329.3 linkc.89T>C p.Leu30Pro missense_variant Exon 4 of 13 ENST00000372037.8 NP_004320.2 P36894

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
BMPR1AENST00000372037.8 linkc.89T>C p.Leu30Pro missense_variant Exon 4 of 13 1 NM_004329.3 ENSP00000361107.2 P36894

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461014
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
726840
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:2
Jan 02, 2022
Color Diagnostics, LLC DBA Color Health
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This missense variant replaces leucine with proline at codon 30 of the BMPR1A protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

Jan 16, 2022
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.L30P variant (also known as c.89T>C), located in coding exon 2 of the BMPR1A gene, results from a T to C substitution at nucleotide position 89. The leucine at codon 30 is replaced by proline, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.40
BayesDel_addAF
Uncertain
0.040
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.17
T;.
Eigen
Benign
-0.13
Eigen_PC
Benign
0.070
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.60
.;T
M_CAP
Benign
0.076
D
MetaRNN
Benign
0.28
T;T
MetaSVM
Benign
-0.55
T
MutationAssessor
Benign
0.97
L;.
PrimateAI
Uncertain
0.64
T
PROVEAN
Benign
0.11
N;.
REVEL
Benign
0.26
Sift
Benign
0.26
T;.
Sift4G
Benign
0.35
T;D
Polyphen
0.088
B;.
Vest4
0.60
MutPred
0.54
Loss of helix (P = 0.0123);Loss of helix (P = 0.0123);
MVP
0.77
MPC
0.65
ClinPred
0.63
D
GERP RS
4.9
Varity_R
0.19
gMVP
0.97

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr10-88649840; API